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Finding the Fourth Proportional to 669,473, 923,871.60 and 367,667

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Solution

The fourth proportional to 669,473, 923,871.60 and 367,667 is: 507,379.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,473 : 923,871.60 = 367,667 : x
  2. Step 2: Convert to fraction form
    669,473/923,871.60 = 367,667/x
  3. Step 3: Cross multiply
    669,473x = 923,871.60 × 367,667
  4. Step 4: Simplify right side
    669,473x = 339,677,099,557.20
  5. Step 5: Solve for x
    x = 339,677,099,557.20/669,473
  6. Step 6: Final answer
    x = 507,379.83

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.